Friction-gearing.



No. 761,384. PATENTED MAY- 1,190

Y J. W. LAMBERT. FRICTION GEARING.

APPLICATION FILED JULY 19- 1902.

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ATTORNEYS WITNESSES: Q mvzmon m: nomls men (20.. rummuma, wmmnrom n. c.

. U ITED STATES I mama May 31,1904.

PATENT. ()FFICE. I

JOHN W. LAMBERT, OF ANDERSON, INDIANA, ASSIGNOR TO THE BUCKEYE." MANUFACTURING COMPANY, OF ANDERSON, INDIANA FRICTION -GEARING.

SPECIFICATION forming part of Letters Patent N 0. 761,384, dated May 31, 1904.

Application filed July 19, 1902. Serial No. 116,168. (No model.)

To wZZ whom it may concern:

Be it known that -I, JOHN W. LAMBERT, a

citizen of the United States of America, residing at Anderson, in the county of Madison and v State of Indiana, have invented certain new and useful Improvements in Fricti0nGearin g,

of which the following is a full, clear, and exact specification. g v

Figure 1 is a side elevation of sufficient parts of an automobile-gearing to. show my invention, andFig. 2 is a face View of the main or driving disk.

v This invention relates to that class of gearing in which the power is transmitted from -I5 the driving-shaft to a driven shaft at right angles theretoby means of a pair of frictiondisks, the periphery of one disk having a frictional engagement with the face of the other disk and adapted to be moved across the same 2 to vary the speed of the driven shaft, as'more fully hereinafter set forth. In adapting this form of power-transmitting mechanism to motor-vehicles it has been found essential in order to obtain the necessary friction-to'have 2 5 one at least of the friction -surfaces made elastic, and the difi'iculty has been to obtain a combination of materials that will be durable and at the same time will insure the transmission of the full power; and it is the object of 3 this invention to overcome these drawbacks,

as more fully set forth hereinafter.

In the drawings, A designates the main or driving disk, which is attached to the driveshaft in the usual way and has fastened to its bearing-face an aluminium disk at coextensive in superficial area to the faceof the drivingdisk. This aluminium disk abuts solidlyagainst the face of the drive-disk and is fastened thereto by a series of screws 0, passed 40' through the disk and preferably arranged around close to the edge thereof outside of the usual'workingarea of the disk, so that they will not ordinarily come in contact with the peripheryof the driven disk and unduly Wear or injure the same.

sisting of a suitable elastic fiber, such as paper or wood.

I In practice I have found that this combinationof aluminium and fiber bearing-surfaces gives the maximum degrees of friction and durability, thereby especially adapting the gearing for use on motor-vehicles of the heavier kind, where the friction-surfaces are at times subjected to great strains and must therefore have a frictional contact of a high degree of efliciency in order to avoid slipping. It will be observed that the aluminium is advanta geous also, because it will not tarnish or rust shaft, a friction-disk carried by each shaft,

the face of onefdisk being provided with an aluminium bearing-plate detachably secured thereto and the attaching means being outside 'of the usual Working area of the bearing-plate against which the periphery of the other disk bears.

3. In a power-transmitting,mechanism, the

combination of a driving-shaft, a friction-disk on said shaft bearing a face of aluminium, and a driven shaft carrying a friction-disk, a fiber periphery secured to said disk and adapted to gear on the aluminium face of the drivingisk.

4:. In a power-transmitting mechanism, the

area of the disk, a disk mounted thereon, a elastic frictional surface bearing upon said fiber periphery' secured to said disk and adaptaluminium surface.

ed to bear on the aluminium face of said driv- In testimony whereof I hereunto afiix my ing-disk. signature, in the presence of two witnesses, 5 5. In a friction-transmitting mechanism, a this 1 1th day of July, 1902.

Wheel having a frictional surface of alumini- JOHN f LAMBERT um.

6. In a frictional gearing, the combination Witnesses: with a friction-disk 'having a surface of alu- JAMES F. BOLEN,

IO minium, of a transmitting-disk having an E. W. LONGANECKER. 

